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GithubIn public places with high personnel turnover, whether masks are worn correctly directly affects on-site order and management efficiency. Relying solely on manual monitoring is not only costly but also unable to ensure timely coverage of all entrances. OpenMV moves the assessment of “whether a mask is properly worn” to the on-site location, enabling more timely and stable management.

In key areas such as public places, park entrances and exits, hospitals, and transportation hubs, whether personnel wear masks correctly directly affects on-site order management and the efficiency of safety regulation enforcement.
Traditional methods primarily rely on manual monitoring or retrospective review of surveillance footage, resulting in high labour costs and difficulty in timely intervention. Some cloud-based video analytics solutions also suffer from issues such as strong network dependency, high latency, and privacy risks. Based on SingTown’s OpenMV intelligent cameras, the system performs real-time mask-wearing status recognition at the camera edge, shifting judgment, decision-making, and control to the site to achieve true “instant perception and instant response.”
OpenMV is typically installed above entrances and exits, above passageways, or above key areas to capture frontal or three-quarter view images of individuals entering.
The camera runs a facial detection algorithm on the device side to automatically locate facial regions and further extract features and perform structural analysis on key areas such as the mouth and nose. By integrating an on-device AI classification model, it accurately distinguishes between multiple states including not wearing a mask, wearing a mask improperly (exposing the nose or mouth), and wearing a mask correctly.
When the system detects a violation, OpenMV can directly trigger voice prompt devices, access control systems, or local alarm modules via GPIO or serial interfaces, enabling immediate alerts upon detection and immediate interception upon violation without manual intervention.
Leveraging OpenMV’s on-device AI and edge computing architecture, the recognition process does not require uploading video data to the cloud, enabling millisecond-level response times while effectively reducing network and server costs and safeguarding personnel privacy at the source—thus upgrading mask management from “manual supervision” to an intelligent model of “automatic sensing + automatic execution.”

AI Sentinel Based on OpenMV: Automatic Alert for Unsecured Key Locations
Automatically detects whether the door of a key location has remained open for an extended period and issues a timely alert.

Personnel crossing the boundary triggers an alarm; OpenMV interprets the “sense of security boundary”
Detects personnel or equipment crossing virtual perimeter lines.

“AI Municipal Enforcement” is here: an automated unauthorised trading detection system built on OpenMV
Automatically identifies illegal street vending activities to support daily urban governance.

Improper storage of gas cylinders? Use OpenMV to automatically trigger hazard alerts
Automatically identifies non-compliant placement of gas cylinders to proactively detect gas-related safety hazards.

Did you perform live-line work without wearing insulating gloves? OpenMV will immediately issue an alert!
Automatically identifies whether personnel are wearing insulating gloves to assist with safe operations.

Utilise the OpenMV smart camera to identify surface defects on aluminium plates in real time
Online identification of defects such as scratches and dents on aluminium plate surfaces to support quality control.